MCM-41, a mesoporous material developed by the Mobil Corporation, is renowned for its unique hexagonal array of uniform mesopores, high surface area, and tunable pore size. These properties make MCM-41 an attractive catalyst or catalyst support in various hydroprocessing applications, including hydrocracking processes.
SBA-15, a mesoporous silica material with a highly ordered hexagonal array of cylindrical channels, has attracted considerable attention in catalysis due to its unique structural properties. It is characterized by large specific surface areas and tunable pore sizes that typically range from 5 to 10 nm, which make it an excellent candidate for various catalytic applications, including hydrocarbon cracking processes.
Beta zeolites are a class of crystalline aluminosilicate materials that have been widely recognized for their utility in catalysis, particularly in selective oxidation reactions. These materials are characterized by their three-dimensional pore structure and the presence of interconnected channels, which provide them with unique properties suitable for various chemical transformations.
ZSM-5 is a type of zeolite, which is a crystalline microporous material belonging to the aluminosilicate family. The abbreviation "ZSM" stands for "Zeolite Socony Mobil", where ZSM-5 was first developed by the Mobil Corporation in the 1970s. Here's an overview of its characteristics and applications
Sn-Beta molecular sieves represent a class of materials that combine the three-dimensional interconnected pore system of Beta zeolites with tin (Sn) active sites, offering unique catalytic properties particularly suited for selective transformations. These materials have garnered significant attention due to their exceptional performance in both liquid and gas phase reactions, especially concerning organic molecule conversions.
Cu-SAPO-34 molecular sieves represent a class of highly efficient catalysts with unique properties, making them particularly suitable for selective catalytic reduction (SCR) of nitrogen oxides (NOx) emissions and other catalytic processes. This type of zeolite combines the advantages of SAPO-34's distinctive framework with the catalytic activity imparted by copper ions.
The uniqueness of TS-1 (Titanium Silicalite-1) catalyst lies in its structure, which incorporates titanium atoms within a silicate framework. This particular arrangement makes TS-1 highly selective and active, especially for the epoxidation of propylene to produce propylene oxide (PO) when using hydrogen peroxide (H2O2) as the oxidant. In this reaction, the titanium centers activate the H2O2, generating active oxygen species that selectively react with propylene to form PO.
Fluid Catalytic Cracking (FCC) is a key process in the petroleum refining industry, aimed at converting heavy crude oil fractions into lighter, more valuable products such as gasoline, diesel, and other fuel oils. NaY zeolite plays an indispensable role in this process due to its unique properties that make it highly effective for catalysis.
Copper-based (Cu-based) catalysts have gained significant attention in the field of selective oxidation reactions due to their unique properties, such as high selectivity and efficiency. These catalysts are widely used in various chemical processes, including the selective oxidation of hydrocarbons, alcohols, and other organic compounds. Below is an overview focusing on the key aspects of Cu-based catalysts for selective oxidation reactions.
